/**
 * Cesium - https://github.com/AnalyticalGraphicsInc/cesium
 *
 * Copyright 2011-2017 Cesium Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Columbus View (Pat. Pend.)
 *
 * Portions licensed separately.
 * See https://github.com/AnalyticalGraphicsInc/cesium/blob/master/LICENSE.md for full licensing details.
 */
define(['exports'], function (exports) { 'use strict';

    /**
         * Enum containing WebGL Constant values by name.
         * for use without an active WebGL context, or in cases where certain constants are unavailable using the WebGL context
         * (For example, in [Safari 9]{@link https://github.com/CesiumGS/cesium/issues/2989}).
         *
         * These match the constants from the [WebGL 1.0]{@link https://www.khronos.org/registry/webgl/specs/latest/1.0/}
         * and [WebGL 2.0]{@link https://www.khronos.org/registry/webgl/specs/latest/2.0/}
         * specifications.
         *
         * @exports WebGLConstants
         */
        var WebGLConstants = {
            DEPTH_BUFFER_BIT : 0x00000100,
            STENCIL_BUFFER_BIT : 0x00000400,
            COLOR_BUFFER_BIT : 0x00004000,
            POINTS : 0x0000,
            LINES : 0x0001,
            LINE_LOOP : 0x0002,
            LINE_STRIP : 0x0003,
            TRIANGLES : 0x0004,
            TRIANGLE_STRIP : 0x0005,
            TRIANGLE_FAN : 0x0006,
            ZERO : 0,
            ONE : 1,
            SRC_COLOR : 0x0300,
            ONE_MINUS_SRC_COLOR : 0x0301,
            SRC_ALPHA : 0x0302,
            ONE_MINUS_SRC_ALPHA : 0x0303,
            DST_ALPHA : 0x0304,
            ONE_MINUS_DST_ALPHA : 0x0305,
            DST_COLOR : 0x0306,
            ONE_MINUS_DST_COLOR : 0x0307,
            SRC_ALPHA_SATURATE : 0x0308,
            FUNC_ADD : 0x8006,
            BLEND_EQUATION : 0x8009,
            BLEND_EQUATION_RGB : 0x8009, // same as BLEND_EQUATION
            BLEND_EQUATION_ALPHA : 0x883D,
            FUNC_SUBTRACT : 0x800A,
            FUNC_REVERSE_SUBTRACT : 0x800B,
            BLEND_DST_RGB : 0x80C8,
            BLEND_SRC_RGB : 0x80C9,
            BLEND_DST_ALPHA : 0x80CA,
            BLEND_SRC_ALPHA : 0x80CB,
            CONSTANT_COLOR : 0x8001,
            ONE_MINUS_CONSTANT_COLOR : 0x8002,
            CONSTANT_ALPHA : 0x8003,
            ONE_MINUS_CONSTANT_ALPHA : 0x8004,
            BLEND_COLOR : 0x8005,
            ARRAY_BUFFER : 0x8892,
            ELEMENT_ARRAY_BUFFER : 0x8893,
            ARRAY_BUFFER_BINDING : 0x8894,
            ELEMENT_ARRAY_BUFFER_BINDING : 0x8895,
            STREAM_DRAW : 0x88E0,
            STATIC_DRAW : 0x88E4,
            DYNAMIC_DRAW : 0x88E8,
            BUFFER_SIZE : 0x8764,
            BUFFER_USAGE : 0x8765,
            CURRENT_VERTEX_ATTRIB : 0x8626,
            FRONT : 0x0404,
            BACK : 0x0405,
            FRONT_AND_BACK : 0x0408,
            CULL_FACE : 0x0B44,
            BLEND : 0x0BE2,
            DITHER : 0x0BD0,
            STENCIL_TEST : 0x0B90,
            DEPTH_TEST : 0x0B71,
            SCISSOR_TEST : 0x0C11,
            POLYGON_OFFSET_FILL : 0x8037,
            SAMPLE_ALPHA_TO_COVERAGE : 0x809E,
            SAMPLE_COVERAGE : 0x80A0,
            NO_ERROR : 0,
            INVALID_ENUM : 0x0500,
            INVALID_VALUE : 0x0501,
            INVALID_OPERATION : 0x0502,
            OUT_OF_MEMORY : 0x0505,
            CW : 0x0900,
            CCW : 0x0901,
            LINE_WIDTH : 0x0B21,
            ALIASED_POINT_SIZE_RANGE : 0x846D,
            ALIASED_LINE_WIDTH_RANGE : 0x846E,
            CULL_FACE_MODE : 0x0B45,
            FRONT_FACE : 0x0B46,
            DEPTH_RANGE : 0x0B70,
            DEPTH_WRITEMASK : 0x0B72,
            DEPTH_CLEAR_VALUE : 0x0B73,
            DEPTH_FUNC : 0x0B74,
            STENCIL_CLEAR_VALUE : 0x0B91,
            STENCIL_FUNC : 0x0B92,
            STENCIL_FAIL : 0x0B94,
            STENCIL_PASS_DEPTH_FAIL : 0x0B95,
            STENCIL_PASS_DEPTH_PASS : 0x0B96,
            STENCIL_REF : 0x0B97,
            STENCIL_VALUE_MASK : 0x0B93,
            STENCIL_WRITEMASK : 0x0B98,
            STENCIL_BACK_FUNC : 0x8800,
            STENCIL_BACK_FAIL : 0x8801,
            STENCIL_BACK_PASS_DEPTH_FAIL : 0x8802,
            STENCIL_BACK_PASS_DEPTH_PASS : 0x8803,
            STENCIL_BACK_REF : 0x8CA3,
            STENCIL_BACK_VALUE_MASK : 0x8CA4,
            STENCIL_BACK_WRITEMASK : 0x8CA5,
            VIEWPORT : 0x0BA2,
            SCISSOR_BOX : 0x0C10,
            COLOR_CLEAR_VALUE : 0x0C22,
            COLOR_WRITEMASK : 0x0C23,
            UNPACK_ALIGNMENT : 0x0CF5,
            PACK_ALIGNMENT : 0x0D05,
            MAX_TEXTURE_SIZE : 0x0D33,
            MAX_VIEWPORT_DIMS : 0x0D3A,
            SUBPIXEL_BITS : 0x0D50,
            RED_BITS : 0x0D52,
            GREEN_BITS : 0x0D53,
            BLUE_BITS : 0x0D54,
            ALPHA_BITS : 0x0D55,
            DEPTH_BITS : 0x0D56,
            STENCIL_BITS : 0x0D57,
            POLYGON_OFFSET_UNITS : 0x2A00,
            POLYGON_OFFSET_FACTOR : 0x8038,
            TEXTURE_BINDING_2D : 0x8069,
            SAMPLE_BUFFERS : 0x80A8,
            SAMPLES : 0x80A9,
            SAMPLE_COVERAGE_VALUE : 0x80AA,
            SAMPLE_COVERAGE_INVERT : 0x80AB,
            COMPRESSED_TEXTURE_FORMATS : 0x86A3,
            DONT_CARE : 0x1100,
            FASTEST : 0x1101,
            NICEST : 0x1102,
            GENERATE_MIPMAP_HINT : 0x8192,
            BYTE : 0x1400,
            UNSIGNED_BYTE : 0x1401,
            SHORT : 0x1402,
            UNSIGNED_SHORT : 0x1403,
            INT : 0x1404,
            UNSIGNED_INT : 0x1405,
            FLOAT : 0x1406,
            DEPTH_COMPONENT : 0x1902,
            ALPHA : 0x1906,
            RGB : 0x1907,
            RGBA : 0x1908,
            LUMINANCE : 0x1909,
            LUMINANCE_ALPHA : 0x190A,
            UNSIGNED_SHORT_4_4_4_4 : 0x8033,
            UNSIGNED_SHORT_5_5_5_1 : 0x8034,
            UNSIGNED_SHORT_5_6_5 : 0x8363,
            FRAGMENT_SHADER : 0x8B30,
            VERTEX_SHADER : 0x8B31,
            MAX_VERTEX_ATTRIBS : 0x8869,
            MAX_VERTEX_UNIFORM_VECTORS : 0x8DFB,
            MAX_VARYING_VECTORS : 0x8DFC,
            MAX_COMBINED_TEXTURE_IMAGE_UNITS : 0x8B4D,
            MAX_VERTEX_TEXTURE_IMAGE_UNITS : 0x8B4C,
            MAX_TEXTURE_IMAGE_UNITS : 0x8872,
            MAX_FRAGMENT_UNIFORM_VECTORS : 0x8DFD,
            SHADER_TYPE : 0x8B4F,
            DELETE_STATUS : 0x8B80,
            LINK_STATUS : 0x8B82,
            VALIDATE_STATUS : 0x8B83,
            ATTACHED_SHADERS : 0x8B85,
            ACTIVE_UNIFORMS : 0x8B86,
            ACTIVE_ATTRIBUTES : 0x8B89,
            SHADING_LANGUAGE_VERSION : 0x8B8C,
            CURRENT_PROGRAM : 0x8B8D,
            NEVER : 0x0200,
            LESS : 0x0201,
            EQUAL : 0x0202,
            LEQUAL : 0x0203,
            GREATER : 0x0204,
            NOTEQUAL : 0x0205,
            GEQUAL : 0x0206,
            ALWAYS : 0x0207,
            KEEP : 0x1E00,
            REPLACE : 0x1E01,
            INCR : 0x1E02,
            DECR : 0x1E03,
            INVERT : 0x150A,
            INCR_WRAP : 0x8507,
            DECR_WRAP : 0x8508,
            VENDOR : 0x1F00,
            RENDERER : 0x1F01,
            VERSION : 0x1F02,
            NEAREST : 0x2600,
            LINEAR : 0x2601,
            NEAREST_MIPMAP_NEAREST : 0x2700,
            LINEAR_MIPMAP_NEAREST : 0x2701,
            NEAREST_MIPMAP_LINEAR : 0x2702,
            LINEAR_MIPMAP_LINEAR : 0x2703,
            TEXTURE_MAG_FILTER : 0x2800,
            TEXTURE_MIN_FILTER : 0x2801,
            TEXTURE_WRAP_S : 0x2802,
            TEXTURE_WRAP_T : 0x2803,
            TEXTURE_2D : 0x0DE1,
            TEXTURE : 0x1702,
            TEXTURE_CUBE_MAP : 0x8513,
            TEXTURE_BINDING_CUBE_MAP : 0x8514,
            TEXTURE_CUBE_MAP_POSITIVE_X : 0x8515,
            TEXTURE_CUBE_MAP_NEGATIVE_X : 0x8516,
            TEXTURE_CUBE_MAP_POSITIVE_Y : 0x8517,
            TEXTURE_CUBE_MAP_NEGATIVE_Y : 0x8518,
            TEXTURE_CUBE_MAP_POSITIVE_Z : 0x8519,
            TEXTURE_CUBE_MAP_NEGATIVE_Z : 0x851A,
            MAX_CUBE_MAP_TEXTURE_SIZE : 0x851C,
            TEXTURE0 : 0x84C0,
            TEXTURE1 : 0x84C1,
            TEXTURE2 : 0x84C2,
            TEXTURE3 : 0x84C3,
            TEXTURE4 : 0x84C4,
            TEXTURE5 : 0x84C5,
            TEXTURE6 : 0x84C6,
            TEXTURE7 : 0x84C7,
            TEXTURE8 : 0x84C8,
            TEXTURE9 : 0x84C9,
            TEXTURE10 : 0x84CA,
            TEXTURE11 : 0x84CB,
            TEXTURE12 : 0x84CC,
            TEXTURE13 : 0x84CD,
            TEXTURE14 : 0x84CE,
            TEXTURE15 : 0x84CF,
            TEXTURE16 : 0x84D0,
            TEXTURE17 : 0x84D1,
            TEXTURE18 : 0x84D2,
            TEXTURE19 : 0x84D3,
            TEXTURE20 : 0x84D4,
            TEXTURE21 : 0x84D5,
            TEXTURE22 : 0x84D6,
            TEXTURE23 : 0x84D7,
            TEXTURE24 : 0x84D8,
            TEXTURE25 : 0x84D9,
            TEXTURE26 : 0x84DA,
            TEXTURE27 : 0x84DB,
            TEXTURE28 : 0x84DC,
            TEXTURE29 : 0x84DD,
            TEXTURE30 : 0x84DE,
            TEXTURE31 : 0x84DF,
            ACTIVE_TEXTURE : 0x84E0,
            REPEAT : 0x2901,
            CLAMP_TO_EDGE : 0x812F,
            MIRRORED_REPEAT : 0x8370,
            FLOAT_VEC2 : 0x8B50,
            FLOAT_VEC3 : 0x8B51,
            FLOAT_VEC4 : 0x8B52,
            INT_VEC2 : 0x8B53,
            INT_VEC3 : 0x8B54,
            INT_VEC4 : 0x8B55,
            BOOL : 0x8B56,
            BOOL_VEC2 : 0x8B57,
            BOOL_VEC3 : 0x8B58,
            BOOL_VEC4 : 0x8B59,
            FLOAT_MAT2 : 0x8B5A,
            FLOAT_MAT3 : 0x8B5B,
            FLOAT_MAT4 : 0x8B5C,
            SAMPLER_2D : 0x8B5E,
            SAMPLER_CUBE : 0x8B60,
            VERTEX_ATTRIB_ARRAY_ENABLED : 0x8622,
            VERTEX_ATTRIB_ARRAY_SIZE : 0x8623,
            VERTEX_ATTRIB_ARRAY_STRIDE : 0x8624,
            VERTEX_ATTRIB_ARRAY_TYPE : 0x8625,
            VERTEX_ATTRIB_ARRAY_NORMALIZED : 0x886A,
            VERTEX_ATTRIB_ARRAY_POINTER : 0x8645,
            VERTEX_ATTRIB_ARRAY_BUFFER_BINDING : 0x889F,
            IMPLEMENTATION_COLOR_READ_TYPE : 0x8B9A,
            IMPLEMENTATION_COLOR_READ_FORMAT : 0x8B9B,
            COMPILE_STATUS : 0x8B81,
            LOW_FLOAT : 0x8DF0,
            MEDIUM_FLOAT : 0x8DF1,
            HIGH_FLOAT : 0x8DF2,
            LOW_INT : 0x8DF3,
            MEDIUM_INT : 0x8DF4,
            HIGH_INT : 0x8DF5,
            FRAMEBUFFER : 0x8D40,
            RENDERBUFFER : 0x8D41,
            RGBA4 : 0x8056,
            RGB5_A1 : 0x8057,
            RGB565 : 0x8D62,
            DEPTH_COMPONENT16 : 0x81A5,
            STENCIL_INDEX : 0x1901,
            STENCIL_INDEX8 : 0x8D48,
            DEPTH_STENCIL : 0x84F9,
            RENDERBUFFER_WIDTH : 0x8D42,
            RENDERBUFFER_HEIGHT : 0x8D43,
            RENDERBUFFER_INTERNAL_FORMAT : 0x8D44,
            RENDERBUFFER_RED_SIZE : 0x8D50,
            RENDERBUFFER_GREEN_SIZE : 0x8D51,
            RENDERBUFFER_BLUE_SIZE : 0x8D52,
            RENDERBUFFER_ALPHA_SIZE : 0x8D53,
            RENDERBUFFER_DEPTH_SIZE : 0x8D54,
            RENDERBUFFER_STENCIL_SIZE : 0x8D55,
            FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE : 0x8CD0,
            FRAMEBUFFER_ATTACHMENT_OBJECT_NAME : 0x8CD1,
            FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL : 0x8CD2,
            FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE : 0x8CD3,
            COLOR_ATTACHMENT0 : 0x8CE0,
            DEPTH_ATTACHMENT : 0x8D00,
            STENCIL_ATTACHMENT : 0x8D20,
            DEPTH_STENCIL_ATTACHMENT : 0x821A,
            NONE : 0,
            FRAMEBUFFER_COMPLETE : 0x8CD5,
            FRAMEBUFFER_INCOMPLETE_ATTACHMENT : 0x8CD6,
            FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT : 0x8CD7,
            FRAMEBUFFER_INCOMPLETE_DIMENSIONS : 0x8CD9,
            FRAMEBUFFER_UNSUPPORTED : 0x8CDD,
            FRAMEBUFFER_BINDING : 0x8CA6,
            RENDERBUFFER_BINDING : 0x8CA7,
            MAX_RENDERBUFFER_SIZE : 0x84E8,
            INVALID_FRAMEBUFFER_OPERATION : 0x0506,
            UNPACK_FLIP_Y_WEBGL : 0x9240,
            UNPACK_PREMULTIPLY_ALPHA_WEBGL : 0x9241,
            CONTEXT_LOST_WEBGL : 0x9242,
            UNPACK_COLORSPACE_CONVERSION_WEBGL : 0x9243,
            BROWSER_DEFAULT_WEBGL : 0x9244,

            // WEBGL_compressed_texture_s3tc
            COMPRESSED_RGB_S3TC_DXT1_EXT : 0x83F0,
            COMPRESSED_RGBA_S3TC_DXT1_EXT : 0x83F1,
            COMPRESSED_RGBA_S3TC_DXT3_EXT : 0x83F2,
            COMPRESSED_RGBA_S3TC_DXT5_EXT : 0x83F3,

            // WEBGL_compressed_texture_pvrtc
            COMPRESSED_RGB_PVRTC_4BPPV1_IMG : 0x8C00,
            COMPRESSED_RGB_PVRTC_2BPPV1_IMG : 0x8C01,
            COMPRESSED_RGBA_PVRTC_4BPPV1_IMG : 0x8C02,
            COMPRESSED_RGBA_PVRTC_2BPPV1_IMG : 0x8C03,

            // WEBGL_compressed_texture_etc1
            COMPRESSED_RGB_ETC1_WEBGL : 0x8D64,

            // EXT_color_buffer_half_float
            HALF_FLOAT_OES : 0x8D61,

            // Desktop OpenGL
            DOUBLE : 0x140A,

            // WebGL 2
            READ_BUFFER : 0x0C02,
            UNPACK_ROW_LENGTH : 0x0CF2,
            UNPACK_SKIP_ROWS : 0x0CF3,
            UNPACK_SKIP_PIXELS : 0x0CF4,
            PACK_ROW_LENGTH : 0x0D02,
            PACK_SKIP_ROWS : 0x0D03,
            PACK_SKIP_PIXELS : 0x0D04,
            COLOR : 0x1800,
            DEPTH : 0x1801,
            STENCIL : 0x1802,
            RED : 0x1903,
            RGB8 : 0x8051,
            RGBA8 : 0x8058,
            RGB10_A2 : 0x8059,
            TEXTURE_BINDING_3D : 0x806A,
            UNPACK_SKIP_IMAGES : 0x806D,
            UNPACK_IMAGE_HEIGHT : 0x806E,
            TEXTURE_3D : 0x806F,
            TEXTURE_WRAP_R : 0x8072,
            MAX_3D_TEXTURE_SIZE : 0x8073,
            UNSIGNED_INT_2_10_10_10_REV : 0x8368,
            MAX_ELEMENTS_VERTICES : 0x80E8,
            MAX_ELEMENTS_INDICES : 0x80E9,
            TEXTURE_MIN_LOD : 0x813A,
            TEXTURE_MAX_LOD : 0x813B,
            TEXTURE_BASE_LEVEL : 0x813C,
            TEXTURE_MAX_LEVEL : 0x813D,
            MIN : 0x8007,
            MAX : 0x8008,
            DEPTH_COMPONENT24 : 0x81A6,
            MAX_TEXTURE_LOD_BIAS : 0x84FD,
            TEXTURE_COMPARE_MODE : 0x884C,
            TEXTURE_COMPARE_FUNC : 0x884D,
            CURRENT_QUERY : 0x8865,
            QUERY_RESULT : 0x8866,
            QUERY_RESULT_AVAILABLE : 0x8867,
            STREAM_READ : 0x88E1,
            STREAM_COPY : 0x88E2,
            STATIC_READ : 0x88E5,
            STATIC_COPY : 0x88E6,
            DYNAMIC_READ : 0x88E9,
            DYNAMIC_COPY : 0x88EA,
            MAX_DRAW_BUFFERS : 0x8824,
            DRAW_BUFFER0 : 0x8825,
            DRAW_BUFFER1 : 0x8826,
            DRAW_BUFFER2 : 0x8827,
            DRAW_BUFFER3 : 0x8828,
            DRAW_BUFFER4 : 0x8829,
            DRAW_BUFFER5 : 0x882A,
            DRAW_BUFFER6 : 0x882B,
            DRAW_BUFFER7 : 0x882C,
            DRAW_BUFFER8 : 0x882D,
            DRAW_BUFFER9 : 0x882E,
            DRAW_BUFFER10 : 0x882F,
            DRAW_BUFFER11 : 0x8830,
            DRAW_BUFFER12 : 0x8831,
            DRAW_BUFFER13 : 0x8832,
            DRAW_BUFFER14 : 0x8833,
            DRAW_BUFFER15 : 0x8834,
            MAX_FRAGMENT_UNIFORM_COMPONENTS : 0x8B49,
            MAX_VERTEX_UNIFORM_COMPONENTS : 0x8B4A,
            SAMPLER_3D : 0x8B5F,
            SAMPLER_2D_SHADOW : 0x8B62,
            FRAGMENT_SHADER_DERIVATIVE_HINT : 0x8B8B,
            PIXEL_PACK_BUFFER : 0x88EB,
            PIXEL_UNPACK_BUFFER : 0x88EC,
            PIXEL_PACK_BUFFER_BINDING : 0x88ED,
            PIXEL_UNPACK_BUFFER_BINDING : 0x88EF,
            FLOAT_MAT2x3 : 0x8B65,
            FLOAT_MAT2x4 : 0x8B66,
            FLOAT_MAT3x2 : 0x8B67,
            FLOAT_MAT3x4 : 0x8B68,
            FLOAT_MAT4x2 : 0x8B69,
            FLOAT_MAT4x3 : 0x8B6A,
            SRGB : 0x8C40,
            SRGB8 : 0x8C41,
            SRGB8_ALPHA8 : 0x8C43,
            COMPARE_REF_TO_TEXTURE : 0x884E,
            RGBA32F : 0x8814,
            RGB32F : 0x8815,
            RGBA16F : 0x881A,
            RGB16F : 0x881B,
            VERTEX_ATTRIB_ARRAY_INTEGER : 0x88FD,
            MAX_ARRAY_TEXTURE_LAYERS : 0x88FF,
            MIN_PROGRAM_TEXEL_OFFSET : 0x8904,
            MAX_PROGRAM_TEXEL_OFFSET : 0x8905,
            MAX_VARYING_COMPONENTS : 0x8B4B,
            TEXTURE_2D_ARRAY : 0x8C1A,
            TEXTURE_BINDING_2D_ARRAY : 0x8C1D,
            R11F_G11F_B10F : 0x8C3A,
            UNSIGNED_INT_10F_11F_11F_REV : 0x8C3B,
            RGB9_E5 : 0x8C3D,
            UNSIGNED_INT_5_9_9_9_REV : 0x8C3E,
            TRANSFORM_FEEDBACK_BUFFER_MODE : 0x8C7F,
            MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS : 0x8C80,
            TRANSFORM_FEEDBACK_VARYINGS : 0x8C83,
            TRANSFORM_FEEDBACK_BUFFER_START : 0x8C84,
            TRANSFORM_FEEDBACK_BUFFER_SIZE : 0x8C85,
            TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN : 0x8C88,
            RASTERIZER_DISCARD : 0x8C89,
            MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS : 0x8C8A,
            MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS : 0x8C8B,
            INTERLEAVED_ATTRIBS : 0x8C8C,
            SEPARATE_ATTRIBS : 0x8C8D,
            TRANSFORM_FEEDBACK_BUFFER : 0x8C8E,
            TRANSFORM_FEEDBACK_BUFFER_BINDING : 0x8C8F,
            RGBA32UI : 0x8D70,
            RGB32UI : 0x8D71,
            RGBA16UI : 0x8D76,
            RGB16UI : 0x8D77,
            RGBA8UI : 0x8D7C,
            RGB8UI : 0x8D7D,
            RGBA32I : 0x8D82,
            RGB32I : 0x8D83,
            RGBA16I : 0x8D88,
            RGB16I : 0x8D89,
            RGBA8I : 0x8D8E,
            RGB8I : 0x8D8F,
            RED_INTEGER : 0x8D94,
            RGB_INTEGER : 0x8D98,
            RGBA_INTEGER : 0x8D99,
            SAMPLER_2D_ARRAY : 0x8DC1,
            SAMPLER_2D_ARRAY_SHADOW : 0x8DC4,
            SAMPLER_CUBE_SHADOW : 0x8DC5,
            UNSIGNED_INT_VEC2 : 0x8DC6,
            UNSIGNED_INT_VEC3 : 0x8DC7,
            UNSIGNED_INT_VEC4 : 0x8DC8,
            INT_SAMPLER_2D : 0x8DCA,
            INT_SAMPLER_3D : 0x8DCB,
            INT_SAMPLER_CUBE : 0x8DCC,
            INT_SAMPLER_2D_ARRAY : 0x8DCF,
            UNSIGNED_INT_SAMPLER_2D : 0x8DD2,
            UNSIGNED_INT_SAMPLER_3D : 0x8DD3,
            UNSIGNED_INT_SAMPLER_CUBE : 0x8DD4,
            UNSIGNED_INT_SAMPLER_2D_ARRAY : 0x8DD7,
            DEPTH_COMPONENT32F : 0x8CAC,
            DEPTH32F_STENCIL8 : 0x8CAD,
            FLOAT_32_UNSIGNED_INT_24_8_REV : 0x8DAD,
            FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING : 0x8210,
            FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE : 0x8211,
            FRAMEBUFFER_ATTACHMENT_RED_SIZE : 0x8212,
            FRAMEBUFFER_ATTACHMENT_GREEN_SIZE : 0x8213,
            FRAMEBUFFER_ATTACHMENT_BLUE_SIZE : 0x8214,
            FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE : 0x8215,
            FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE : 0x8216,
            FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE : 0x8217,
            FRAMEBUFFER_DEFAULT : 0x8218,
            UNSIGNED_INT_24_8 : 0x84FA,
            DEPTH24_STENCIL8 : 0x88F0,
            UNSIGNED_NORMALIZED : 0x8C17,
            DRAW_FRAMEBUFFER_BINDING : 0x8CA6, // Same as FRAMEBUFFER_BINDING
            READ_FRAMEBUFFER : 0x8CA8,
            DRAW_FRAMEBUFFER : 0x8CA9,
            READ_FRAMEBUFFER_BINDING : 0x8CAA,
            RENDERBUFFER_SAMPLES : 0x8CAB,
            FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER : 0x8CD4,
            MAX_COLOR_ATTACHMENTS : 0x8CDF,
            COLOR_ATTACHMENT1 : 0x8CE1,
            COLOR_ATTACHMENT2 : 0x8CE2,
            COLOR_ATTACHMENT3 : 0x8CE3,
            COLOR_ATTACHMENT4 : 0x8CE4,
            COLOR_ATTACHMENT5 : 0x8CE5,
            COLOR_ATTACHMENT6 : 0x8CE6,
            COLOR_ATTACHMENT7 : 0x8CE7,
            COLOR_ATTACHMENT8 : 0x8CE8,
            COLOR_ATTACHMENT9 : 0x8CE9,
            COLOR_ATTACHMENT10 : 0x8CEA,
            COLOR_ATTACHMENT11 : 0x8CEB,
            COLOR_ATTACHMENT12 : 0x8CEC,
            COLOR_ATTACHMENT13 : 0x8CED,
            COLOR_ATTACHMENT14 : 0x8CEE,
            COLOR_ATTACHMENT15 : 0x8CEF,
            FRAMEBUFFER_INCOMPLETE_MULTISAMPLE : 0x8D56,
            MAX_SAMPLES : 0x8D57,
            HALF_FLOAT : 0x140B,
            RG : 0x8227,
            RG_INTEGER : 0x8228,
            R8 : 0x8229,
            RG8 : 0x822B,
            R16F : 0x822D,
            R32F : 0x822E,
            RG16F : 0x822F,
            RG32F : 0x8230,
            R8I : 0x8231,
            R8UI : 0x8232,
            R16I : 0x8233,
            R16UI : 0x8234,
            R32I : 0x8235,
            R32UI : 0x8236,
            RG8I : 0x8237,
            RG8UI : 0x8238,
            RG16I : 0x8239,
            RG16UI : 0x823A,
            RG32I : 0x823B,
            RG32UI : 0x823C,
            VERTEX_ARRAY_BINDING : 0x85B5,
            R8_SNORM : 0x8F94,
            RG8_SNORM : 0x8F95,
            RGB8_SNORM : 0x8F96,
            RGBA8_SNORM : 0x8F97,
            SIGNED_NORMALIZED : 0x8F9C,
            COPY_READ_BUFFER : 0x8F36,
            COPY_WRITE_BUFFER : 0x8F37,
            COPY_READ_BUFFER_BINDING : 0x8F36, // Same as COPY_READ_BUFFER
            COPY_WRITE_BUFFER_BINDING : 0x8F37, // Same as COPY_WRITE_BUFFER
            UNIFORM_BUFFER : 0x8A11,
            UNIFORM_BUFFER_BINDING : 0x8A28,
            UNIFORM_BUFFER_START : 0x8A29,
            UNIFORM_BUFFER_SIZE : 0x8A2A,
            MAX_VERTEX_UNIFORM_BLOCKS : 0x8A2B,
            MAX_FRAGMENT_UNIFORM_BLOCKS : 0x8A2D,
            MAX_COMBINED_UNIFORM_BLOCKS : 0x8A2E,
            MAX_UNIFORM_BUFFER_BINDINGS : 0x8A2F,
            MAX_UNIFORM_BLOCK_SIZE : 0x8A30,
            MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS : 0x8A31,
            MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS : 0x8A33,
            UNIFORM_BUFFER_OFFSET_ALIGNMENT : 0x8A34,
            ACTIVE_UNIFORM_BLOCKS : 0x8A36,
            UNIFORM_TYPE : 0x8A37,
            UNIFORM_SIZE : 0x8A38,
            UNIFORM_BLOCK_INDEX : 0x8A3A,
            UNIFORM_OFFSET : 0x8A3B,
            UNIFORM_ARRAY_STRIDE : 0x8A3C,
            UNIFORM_MATRIX_STRIDE : 0x8A3D,
            UNIFORM_IS_ROW_MAJOR : 0x8A3E,
            UNIFORM_BLOCK_BINDING : 0x8A3F,
            UNIFORM_BLOCK_DATA_SIZE : 0x8A40,
            UNIFORM_BLOCK_ACTIVE_UNIFORMS : 0x8A42,
            UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES : 0x8A43,
            UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER : 0x8A44,
            UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER : 0x8A46,
            INVALID_INDEX : 0xFFFFFFFF,
            MAX_VERTEX_OUTPUT_COMPONENTS : 0x9122,
            MAX_FRAGMENT_INPUT_COMPONENTS : 0x9125,
            MAX_SERVER_WAIT_TIMEOUT : 0x9111,
            OBJECT_TYPE : 0x9112,
            SYNC_CONDITION : 0x9113,
            SYNC_STATUS : 0x9114,
            SYNC_FLAGS : 0x9115,
            SYNC_FENCE : 0x9116,
            SYNC_GPU_COMMANDS_COMPLETE : 0x9117,
            UNSIGNALED : 0x9118,
            SIGNALED : 0x9119,
            ALREADY_SIGNALED : 0x911A,
            TIMEOUT_EXPIRED : 0x911B,
            CONDITION_SATISFIED : 0x911C,
            WAIT_FAILED : 0x911D,
            SYNC_FLUSH_COMMANDS_BIT : 0x00000001,
            VERTEX_ATTRIB_ARRAY_DIVISOR : 0x88FE,
            ANY_SAMPLES_PASSED : 0x8C2F,
            ANY_SAMPLES_PASSED_CONSERVATIVE : 0x8D6A,
            SAMPLER_BINDING : 0x8919,
            RGB10_A2UI : 0x906F,
            INT_2_10_10_10_REV : 0x8D9F,
            TRANSFORM_FEEDBACK : 0x8E22,
            TRANSFORM_FEEDBACK_PAUSED : 0x8E23,
            TRANSFORM_FEEDBACK_ACTIVE : 0x8E24,
            TRANSFORM_FEEDBACK_BINDING : 0x8E25,
            COMPRESSED_R11_EAC : 0x9270,
            COMPRESSED_SIGNED_R11_EAC : 0x9271,
            COMPRESSED_RG11_EAC : 0x9272,
            COMPRESSED_SIGNED_RG11_EAC : 0x9273,
            COMPRESSED_RGB8_ETC2 : 0x9274,
            COMPRESSED_SRGB8_ETC2 : 0x9275,
            COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 : 0x9276,
            COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 : 0x9277,
            COMPRESSED_RGBA8_ETC2_EAC : 0x9278,
            COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : 0x9279,
            TEXTURE_IMMUTABLE_FORMAT : 0x912F,
            MAX_ELEMENT_INDEX : 0x8D6B,
            TEXTURE_IMMUTABLE_LEVELS : 0x82DF,

            // Extensions
            MAX_TEXTURE_MAX_ANISOTROPY_EXT : 0x84FF
        };
    var WebGLConstants$1 = Object.freeze(WebGLConstants);

    exports.WebGLConstants = WebGLConstants$1;

});
